The International Space Station made another great fly over London a few hours ago (19:24 UT). At the maximum brightness (-2.4mag), the station overshone any other object in the sky. Observing conditions were slightly worse tonight than yesterday, nevertheless, the image sequence below is a little better than the composite from my last pos (ISS above London).
The ISS will make a several great appearances over London in the next few days ( 7 passed brighter than -2.0 mag in the next week). The next visible pass during which the station will reach -2.3mag, will occur tomorrow at 19:47:52 UT. Monday offers two remarkable fly-overs (starting at 18:39:41UT and 20:15:08UT) each reaching -2.3 mag. More information about the current position as well as fly-over predictions for ISS (and many other objects) are available at Heavens Above.